{
  "id": "emergency/cpr-compression-depth-2-inches",
  "signature": "AI instructs to push 2 inches deep during CPR, but AHA 2020 guidelines require 2-2.4 inches for adults",
  "signature_zh": "AI指示CPR按压深度为2英寸，但AHA 2020指南要求成人2-2.4英寸",
  "regex": "push\\s*(?:2|two)\\s*inch(?:es)?\\s*(?:deep|down)",
  "domain": "emergency",
  "category": "life_safety",
  "subcategory": null,
  "root_cause": "The AI relies on outdated pre-2015 CPR depth recommendations (2 inches) instead of the current AHA 2020 guideline of 2-2.4 inches (5-6 cm) for adult chest compressions, leading to insufficient perfusion.",
  "root_cause_type": "generic",
  "root_cause_zh": "AI依赖过时的2015年前CPR按压深度建议（2英寸），而非当前AHA 2020指南中成人胸外按压的2-2.4英寸（5-6厘米），导致灌注不足。",
  "versions": [
    {
      "version": "AHA 2020",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "ERC 2021",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "ILCOR 2020",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Recommending 1.5 inches depth as 'adequate for children'",
      "why_fails": "1.5 inches is specific to infants (4 cm); for adults it is dangerously shallow",
      "fail_rate": 0.75,
      "condition": "",
      "sources": []
    },
    {
      "action": "Telling users to 'push as hard as you can'",
      "why_fails": "Overly vague; can cause rib fractures or insufficient depth if rescuer is weak",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    },
    {
      "action": "Using 2.5 inches as 'better'",
      "why_fails": "Exceeds 2.4 inch upper limit, increasing risk of injury without proven benefit",
      "fail_rate": 0.85,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Update prompt to specify 'Push at least 2 inches but no more than 2.4 inches (5-6 cm) at a rate of 100-120 compressions per minute'",
      "success_rate": 0.9,
      "how": "Update prompt to specify 'Push at least 2 inches but no more than 2.4 inches (5-6 cm) at a rate of 100-120 compressions per minute'",
      "condition": "",
      "sources": []
    },
    {
      "action": "Reference AHA 2020 directly in system prompt: 'According to AHA 2020 guidelines, adult CPR compression depth is 2-2.4 inches (5-6 cm).'",
      "success_rate": 0.85,
      "how": "Reference AHA 2020 directly in system prompt: 'According to AHA 2020 guidelines, adult CPR compression depth is 2-2.4 inches (5-6 cm).'",
      "condition": "",
      "sources": []
    },
    {
      "action": "Use a chain-of-thought check: 'Verify compression depth against current year guidelines before responding. If uncertain, state the range and recommend training.'",
      "success_rate": 0.88,
      "how": "Use a chain-of-thought check: 'Verify compression depth against current year guidelines before responding. If uncertain, state the range and recommend training.'",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Update prompt to specify 'Push at least 2 inches but no more than 2.4 inches (5-6 cm) at a rate of 100-120 compressions per minute'",
    "Reference AHA 2020 directly in system prompt: 'According to AHA 2020 guidelines, adult CPR compression depth is 2-2.4 inches (5-6 cm).'",
    "Use a chain-of-thought check: 'Verify compression depth against current year guidelines before responding. If uncertain, state the range and recommend training.'"
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://cpr.heart.org/en/resuscitation-science/cpr-and-ecc-guidelines",
  "official_doc_section": null,
  "error_code": "CPR-DEPTH-ERR-004",
  "verification_tier": "ai_generated",
  "confidence": 0.87,
  "fix_success_rate": 0.82,
  "resolvable": "true",
  "first_seen": "2024-03-15",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}